Measurement of charm production at central rapidity in proton-proton collisions at $\sqrt{s} = 7$ TeV

Abelev, B.; Abrahantes Quintana, A.; Adamova, D.; Adare, A.M.; Aggarwal, M.M.; Aglieri Rinella, G.; Agocs, A.G.; Agostinelli, A.; Aguilar Salazar, S.; Ahammed, Z.

doi:10.1007/JHEP01(2012)128

Measurement of charm production at central rapidity in proton-proton collisions at $\sqrt{s} = 7$ TeV

ALICE

Collaboration

Jan, 2012

24 pages

Published in:

JHEP 01 (2012) 128

e-Print:

1111.1553 [hep-ex]

DOI:

10.1007/JHEP01(2012)128

Report number:

CERN-PH-EP-2011-181

Experiments:

CERN-LHC-ALICE

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Abstract: (arXiv)

The

p_{\rm T}

-differential inclusive production cross sections of the prompt charmed mesons

D^0

,

D^+

, and

D^{*+}

in the rapidity range |y|<0.5 were measured in proton-proton collisions at

\sqrt{s} = 7

TeV at the LHC using the ALICE detector. Reconstructing the decays

D^0\rightarrow K^-\pi^+

,

D^+\rightarrow K^-\pi^+\pi^+

,

D^{*+}\rightarrow D^0\pi^+

, and their charge conjugates, about 8,400

D^0

, 2,900

D^+

, and 2,600

D^{*+}

mesons with 1<

p_{\rm T}

<24 GeV/

c

were counted, after selection cuts, in a data sample of 3.14x10

^8

events collected with a minimum-bias trigger (integrated luminosity

L_{\rm int}

= 5/nb). The results are described within uncertainties by predictions based on perturbative QCD.

Note:

23 pages, 5 captioned figures, 3 tables, authors from page 18, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3871

charm: production
quantum chromodynamics: perturbation theory
p p: inclusive reaction
rapidity: central region
CERN LHC Coll
charmed meson: hadroproduction
track data analysis: vertex
ALICE
charmed meson: direct production
D+: hadronic decay

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Measurement of charm production at central rapidity in proton-proton collisions at s=7\sqrt{s} = 7s​=7 TeV

Citations per year

Measurement of charm production at central rapidity in proton-proton collisions at $\sqrt{s} = 7$ TeV